Mug lid



FIG. 1 is a perspective view of the mug lid;

FIG. 2 is a right side elevation thereof;

FIG. 3 is a front elevation view thereof;

FIG. 4 is a left side elevation view thereof;

FIG. 5 is a back elevation view thereof;

FIG. 6 is a top view thereof; and,

FIG. 7 is a bottom view thereof.

The broken line showing of a portion of the mug lid illustrates aportion of the mug lid which forms no part of the claimed design. Thebroken line showing of the mug illustrates environmental structure andforms no part of the claimed design.

CLAIM We claim the ornamental design for a mug lid, as shown anddescribed.